reference correct location for generate_ts_pdf

Refs #21294

scripts/Diffraction/isis_powder/polaris.py

@@ -46,8 +46,8 @@ class Polaris(AbstractInst):
         self._inst_settings.update_attributes(kwargs=kwargs)
         # Validate that required files exist
         # generate pdf
-        pdf_output = self._generate_ts_pdf(focused_ws=self._inst_settings.focused_ws,
-                                           merge_banks=self._inst_settings.merge_banks)
+        pdf_output = polaris_algs.generate_ts_pdf(focused_ws=self._inst_settings.focused_ws,
+                                                  merge_banks=self._inst_settings.merge_banks)
         return pdf_output
 
     def set_sample_details(self, **kwargs):